CVE-2026-20911 — CRITICAL (9.8)

Vulnerability Description

A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality of LibRaw Commit 0b56545 and Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

CVSS Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Libraw	Libraw	0.22.0

Related Weaknesses (CWE)

CWE-131

References

https://talosintelligence.com/vulnerability_reports/TALOS-2026-2330ExploitThird Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2330ExploitThird Party Advisory

FAQ

What is CVE-2026-20911?

CVE-2026-20911 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality of LibRaw Commit 0b56545 and Commit d20315b. A specially crafted malicious file can lead to a heap buffer over...

How severe is CVE-2026-20911?

CVE-2026-20911 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-20911?

Check the references section above for vendor advisories and patch information. Affected products include: Libraw Libraw.